CN112062217A - Application of degradable composite material in oil absorption - Google Patents
Application of degradable composite material in oil absorption Download PDFInfo
- Publication number
- CN112062217A CN112062217A CN202011061624.6A CN202011061624A CN112062217A CN 112062217 A CN112062217 A CN 112062217A CN 202011061624 A CN202011061624 A CN 202011061624A CN 112062217 A CN112062217 A CN 112062217A
- Authority
- CN
- China
- Prior art keywords
- oil
- composite material
- families
- degradable composite
- pleurotus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Mushroom Cultivation (AREA)
Abstract
The invention relates to the field of application of biological materials, and discloses application of a degradable composite material in oil absorption. The degradable composite material has good oil absorption performance and has good application potential in the aspects of petroleum leakage, water oil stain removal, oily wastewater treatment and the like. On the other hand, the invention can solve the problem of processing agricultural residues such as straws, wood chips and the like and forestry residues, increase the additional value of the residues, reduce the environmental pollution and contribute to the coordinated development of economy, ecological environment and society.
Description
Technical Field
The invention relates to the field of application of biological materials, in particular to application of a degradable composite material (lignocellulose clastic reinforced hypha composite material) in oil absorption.
Background
The oil pollution is divided into oil spill pollution and oily wastewater pollution. The petrochemical industry, the mining industry, the food industry, the textile industry, the metal industry, the water equipment, the catering industry and the like all generate oily wastewater, and the kitchen and household garbage are the main sources of the oily wastewater in the urban sewage.
The method is one of the commonly used effective methods for treating oil spill pollution and oily wastewater by using an oil absorption material for adsorption. Oil absorption is also one of the best choices for removing oil stains on the ground and objects. The method has positive effects of keeping the ground, walkways and workshop working environments clean and avoiding explosion accidents caused by oil gas volatilization.
Many of the new oil-absorbing materials developed in recent years have not been commercially viable despite their high oil absorption. From the practical application point of view, the cost of oil absorption, including the cost and use cost of the oil absorption material, such as the cost of raw materials, manufacturing, transportation, storage, oil absorption operation processes required for absorbing a certain mass of oil, the cost of harmless disposal after the oil absorption material is used, and the like, must be considered. In addition, the safety and environmental compatibility of the oil-absorbing material are also important evaluation indexes. At present, the most commonly used synthetic polymer oil absorption material is produced by taking petroleum as a raw material mostly, and the synthetic polymer oil absorption material is not biodegradable, has troublesome subsequent treatment and easily causes secondary pollution, and has complex production process, higher danger in the production process and relatively higher cost.
On the other hand, many oil absorption materials used at present are soft, and after oil absorption, the oil is deformed by gravity and extrusion in the process of catching, recovering and shipping, so that the adsorbed oil flows out, drips and spills, and new pollution is easily caused.
Therefore, the development of the oil absorption material which has the advantages of cheap, easily obtained and renewable raw materials, simple production process, low cost, proper compression strength and good environmental compatibility (environmental protection performance, particularly biodegradable) has important practical application value.
Disclosure of Invention
The invention aims to provide the application of a degradable composite material (lignocellulose clastic reinforced hypha composite material) which is low in price and environment-friendly in oil absorption. Aiming at the problems of environmental harmony, cost and the like of the oil absorption material, the degradable environment-friendly oil absorption material with proper oil absorption performance is prepared at low cost by taking waste lignocellulose biomass as a main raw material and adopting a green biological process.
The inventors of the present invention found in their studies that fixing lignocellulosic chips with a network structure formed by hyphae (hypa) of fungus (Fungi) enables to obtain an oil absorbing material with excellent performance, and therefore, in order to achieve the above object, the first aspect of the present invention provides use of a degradable composite material comprising a three-dimensional network structure formed by hyphae of fungus and at least one lignocellulosic chip fixed by the three-dimensional network structure in oil absorption.
In a second aspect, the present invention provides a method of oil absorption, the method comprising: contacting a degradable composite material with oil, the degradable composite material comprising a three-dimensional network structure formed by fungal hyphae and at least one lignocellulosic chip immobilized by the three-dimensional network structure.
The degradable composite material has better oil absorption performance and has good application potential in the aspects of oil leakage, oil stain removal on water and the like; also can be used for water body purification or oil stain absorption, including: the method comprises the steps of treating the surface of water bodies such as sea, river, lake and the like to cause oil slick pollution, purifying oily industrial sewage, treating organic solvent and domestic kitchen waste grease, adsorbing oil stain on the ground and the like. On the other hand, the method can solve the problem of processing agricultural residues such as straws and the like and forestry residues, increase the additional value of the residues such as the straws and the like, reduce the environmental pollution and contribute to promoting the coordinated development of economy, ecological environment and society.
Specifically, the invention has the following advantages:
(1) in the invention, the composite material obtained by winding and fixing culture medium debris (lignocellulose debris) by the fungal hypha has better oil absorption performance and low cost, and the degradable composite material with the appearance and the performance meeting the requirements can be easily obtained by designing the appearance and the raw material ratio according to the expected application of the material by a person skilled in the art.
(2) The degradable composite material of the invention can be degraded without using non-degradable organic matters and petroleum-based chemicals. If the material is scattered or lost in the environment of soil, water body and the like in transportation and use, the material can not cause pollution.
(3) The method is simple and easy to implement, the raw materials are natural products, the raw materials are renewable, the source is wide, the cost is low, the prepared degradable composite material is easy to transport and store, the floatability is good, the oil retention rate is high, the adsorption material can float on the water surface before and after oil absorption, the recovery and the post-treatment are convenient, and the secondary pollution to the environment is not easy to cause.
(4) The preparation process of the degradable composite material is energy-saving and environment-friendly, only depends on the growth and the formation of hypha cultured in a solid state (the hypha can be in a conventional structure such as a square structure, a spherical structure and the like, and can also be in a hollow structure or a special-shaped structure), does not depend on other physical/chemical methods for forming, has no high temperature and high pressure, has small risk of accidents (explosion, fire and the like) in the preparation process, and generates less waste residues, waste water and waste gas.
(5) The degradable composite material of the invention is easy to store and is not easy to burn caused by static electricity.
(6) The degradable composite material of the invention has less carbon emission in the whole life cycle. After the material is discarded, energy can be recovered by combustion.
(7) Furthermore, by means of Ceriporia lacerata (Ceriporia lacerata) with the preservation number of CGMCC No.10485, the degradable composite material can be prepared by the culture medium (raw material) without sterilization or bacteriostasis treatment, and the preparation process does not require sterile environment, thereby greatly reducing the preparation cost.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
The invention provides application of a degradable composite material in oil absorption, wherein the degradable composite material comprises a three-dimensional net structure formed by fungus hyphae and at least one lignocellulose fragment fixed by the three-dimensional net structure.
In the degradable composite material, fungus hypha can grow on the surface and/or inside the lignocellulose scraps, so that at least one lignocellulose scrap can be fixed to form the composite material with the hypha as a matrix and the lignocellulose scraps as a reinforcement. In the degradable composite material, the number of the lignocellulose scraps can be one or more, and when the number of the lignocellulose scraps is multiple, the fungus hyphae fix the multiple lignocellulose scraps together to form a whole. The degradable composite material is in a regular or irregular three-dimensional shape, can be in a sheet or strip shape, can also be in a granular shape (square or spherical shape), can also be in a hollow shape, and can also be in an irregular special-shaped structure. The shape of the degradable composite material can be selected by those skilled in the art to accommodate different oil absorption scenarios.
In the present invention, the density of the degradable composite material is usually 70 to 400kg/m3Within the range, the compression performance is also good.
In the present invention, the oil may be any hydrophobic material that is capable of being in a liquid state under certain conditions, i.e., includes materials that are in a liquid state under certain conditions and in a solid state under other conditions. For example, the oil may be a substance having a solubility of less than 1g in 100mL of water at 25 ℃. In practical application, the degradable composite material absorbs oil at the temperature at which an adsorbed object (oil) is in a liquid state.
Preferably, the oil has a surface tension of less than 40 x 10-3N/m。
Preferably, the oil has a density of less than 1g/cm3。
In the present invention, the oil may be naturally occurring or may be artificially synthesized.
Preferably, the oil is selected from at least one of vegetable oil, mineral oil, animal oil, and synthetic water-insoluble liquid. Wherein the vegetable oil can be peanut oil, soybean oil, linseed oil, castor oil, rapeseed oil, corn oil, olive oil, linseed oil, cinnamon oil, essential oil, etc. The mineral oil can be petroleum (crude oil), condensate oil, gasoline, kerosene, diesel oil, lubricating oil, transformer oil, engine oil, liquid paraffin, paraffin and coal tar. The animal oil can be derived from pig, cattle, sheep, horse, chicken, insect (such as beeswax, insect wax, etc.), etc. The artificially synthesized water-insoluble liquid includes at least one of various silicone oils, aromatic hydrocarbons (e.g., benzene, toluene, xylene, dichlorotoluene, bromobenzene, etc.), alkanes (e.g., pentadecane, tetradecane, tridecane, dodecane, undecane, nonane, isooctane, hexane, trichloromethane, tetrachloromethane, etc.), cycloalkanes (e.g., cyclohexane, cyclopentane, cycloheptane, etc.), ethers (e.g., petroleum ether, butyl ether, etc.), esters (e.g., butyl oleate, butyl acetate, butyl palmitate, etc.), ketones (e.g., 2-nonanone, methyl isobutyl ketone, 3-hexanone, etc.), and organic acids (e.g., octanoic acid, etc.).
In the present invention, the source of the lignocellulosic pieces is not particularly limited, but is preferably a plant-based material capable of providing a nutrient source or a carrier for the formation of fungal hyphae, and may be derived from at least one of plants, plant wastes, and waste mushroom bran.
In the present invention, the lignocellulosic detritus may be derived from a plant, such as at least one of seeds, stalks, roots, leaves and fruits, i.e., may be derived from wood, bamboo, cotton linters, paper, loofah sponge, wheat straw, rice straw, sorghum straw, reed, hemp, mulberry bark, paper mulberry bark, corn stover, corn husks, rape straw, jerusalem artichoke stalks, pennisetum, thatch, miscanthus, elephant grass, pennisetum, bamboo grass, salix psammophilus, caragana grass, rattan, grape vine, sugar cane and processing residues thereof (i.e., plant wastes).
As previously mentioned, the lignocellulosic chips may also be provided from vegetable waste. The plant waste may be stem and leaf parts of crops (such as stalks (including stalks left after mature threshing of gramineous crops such as rice, wheat, barley, corn, sorghum, etc.), cotton stalks, beanstalk, rape stalks, pennisetum, reed, silvergrass, devil's tongue, garter grass, wula sedge, splendid achnatherum, thatch, miscanthus, elephant grass, mat grass, pennisetum, bamboo grass, rattan, salix mongolica, caragana, switchgrass, etc.), seed hulls and fruit shells (such as cotton seed hulls, ginning scraps, rice hulls, pearl barley hulls, peanut hulls, bran, rice bran, coconut palm, etc.), wooden waste (wood chips, scraps, firewood, bark, branch firewood, curly skins, wood shavings, branches under pruning of fruit trees, etc.), vine waste (grape cane, yellow cross vine, etc.), bamboo, paper, cotton, hemp, sisal, pineapple stem and leaf, banana stem and leaf, corncob, bagasse, palm stem and leaf, agave stem and leaf, etc.
In the invention, the lignocellulose scraps can be derived from the residual waste culture medium for cultivating the edible fungi, and the residual waste culture medium for cultivating the edible fungi refers to the culture medium containing mycelium after the fruiting bodies of the edible fungi are harvested, and is called waste fungus chaff.
In the present invention, the leftovers refer to leftovers or waste materials separated as residues in the process of plant processing.
More preferably, the plant waste is at least one of beanstalk, corn stover, bran, cottonseed hulls, peanut hulls, corncobs, offal, plant extraction residue, distillers' dried grain (DDG), and waste mushroom bran.
In the present invention, the shape of the lignocellulosic pieces is not particularly limited, and may be in the form of a sheet, a strip, a fiber, a granule, a feather, a fluff, a net or other irregular shape.
In the present invention, the size of the lignocellulosic pieces is not particularly limited, and in order to obtain better forming effect and suitable performance of the degradable composite material, the weight of the lignocellulosic pieces with the particle size of 2mm or more (more preferably 25mm or less, and further preferably 2 to 15mm) is preferably 20 to 100% (e.g., 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or a range between any two of the above values) of the total weight of the lignocellulosic pieces.
In the invention, the lignocellulose scraps are a main raw material for preparing the degradable composite material, are used as a carrier for supporting the growth of fungal hyphae, can provide partial nutrient components required by the growth of the hyphae in the hyphae growth stage, and the rest part which is not utilized plays roles of enhancing the body and assisting in oil absorption in a three-dimensional net structure of the composite material. Therefore, in the present invention, the lignocellulose fragments in the degradable composite material can be residues after providing nutrients for hyphae formed by the growth of fungi, and can also be lignocellulose raw materials which are only used for providing support for the hyphae formed by the growth of fungi and are not utilized by the growth of fungi.
On the one hand, the lignocellulosic chips can be used directly as nutrients. Therefore, the degradable composite material is a solid fermentation product containing hyphae obtained by culturing fungi by using lignocellulose scraps as a nutrient source.
On the other hand, the nutrient source (culture medium containing lignocellulose chips) may contain other nutrients such as carbon sources, nitrogen sources, inorganic salts, vitamins and trace elements necessary for the hypha formation of fungi, and the other carbon sources, nitrogen sources, inorganic salts and the like are not particularly limited as long as they can provide nutrients necessary for the growth of fungi and a suitable environment. For example, corn flour such as corn flour, starch, dextrin, maltose, glucose, sucrose, fructose, xylose, and the like may be introduced as a carbon source; introducing nitrogen-containing materials such as bran, rice bran, corn steep liquor, ammonium salt, nitrate, nitrite, yeast powder, yeast extract powder, fish meal, gelatin, animal and plant proteins and hydrolysates thereof and the like as nitrogen sources, and optionally using nitrogen-containing inorganic salts as nitrogen sources. If necessary, a certain amount of inorganic salt, for example, calcium sulfate, potassium salt, magnesium salt, phosphate, sulfate, ferrous salt, amino acid, vitamin B, may be added to the culture medium1And the like to promote the growth of hyphae.
In the present invention, the fungal hyphae may be selected from various fungi capable of forming hyphae (hyphae can be entwined to form a three-dimensional network structure), such as large fungi (mushrooms, also called mushrooms) among ascomycetes (ascomycetes) and basidiomycetes (Basidiomycota), and may be selected from the families of mushrooms (Agaricaceae), trichoderma (auricle), poromycetes (bongarezeae), poroidea (fomitopsidae), ganoderma (Ganodermataceae), fuscoporiaceae (glycoophyceae), malamidaceae (helvolvaceae), Morchellaceae (Morchellaceae), trichoderma (ompataceae), cephalosporiaceae (phyceae), pleurotus (pleucetaceae), phocarpiaceae (pleaceae), triphyllaceae (triphyllaceae), Polyporaceae (trichothecaceae), trichothecaceae (stenotrophaceae), and at least one species of tremella (stenocardiaceae), trichothecaceae, and stenotrophaceae (stephaceae).
Preferably, the fungus is selected from the group consisting of Agaricus (Agaricus), Agrocybe (Agrocybe) Auricularia (Auricularia), Clicornia (Bjerkandra), Polyporus (Bondarzewia), Ceriporia (Ceriporia), Clitomyces (Clitocybe), Coriolus (Coriolus), Pseudomona (Daedalleopsis), Polyporus (Favolus), Flammulina (Flammulina), Phellinus (Fomes), Phellinus (Fomitopsis), Ganoderma (Ganoderma), Pleurotus (Gloenophyllum), Malassezia (Helvella), Uvularia (Hyphoma), Phellinus (Inula), Lactarius (Lactarius), Lentinus (Leinula), Lyophyllum (Lyophyllum), Pholiota (Phomophyllum), Pleurotus (Pholiota), Pleurotus (Pholiota (P), Pleurotus) and Pholiota (P. sp), Pleurotus (P. sp.), Pleurotus (, At least one fungus selected from the group consisting of Poria (Poria), Porphyra (Porodadalea), Phellinus (Pyropolorum), Schizophyllum (Schizophyllum), coriolus (Stereum), Trametes (trames), Tremella (Tremella), Tricholoma (Tricholoma), Tyromyces (Tyromyces) and Volvariella (Volvariella).
More preferably, the fungus is selected from the group consisting of Agaricus bisporus (Agaricus bisporus), Agaricus bicolor (Agaricus planecomyces), Agrocybe aegerita (Agrocybe aegerita) Auricularia (Auricularia auricula), Erysipelothria fumosorosea (Bjerkandra fumosa), Torulopsis burghia (Bondazia berkeley), Ceriporia lacerata (Ceriporia lacerata), Clitophylla maxima (Clitophylla maxima), Coriolus versicolor (Coriolus biformis), Coriolus hirsutus (Coriolus hirsutus), Coriolus versicolor (Coriolus versicolor), Hymenochaetes crassa (Daaleopsis Frondosa), Pharmacopeia tricolor (Daalersis tricolor), Hymenochaetes versicolor (Pharmacophyllum), Ganoderma lucidum (Pharmacophyllum), Hypocladium giganteum (Pharmacophyllum trichoderma), Hypocladium giganteum (Pharmata), Hypocladium giganteum trichoderma, Hypocrea (Pharmata), Pharmacopeia giganteum trichoderma, Hypocladium tricornutum (Pharma serosa), Hygrophyte (Pharmata), Pharmacopeia giganteum trichoderma), Hygrophyceae (Pharma serous (Pharma serotus), Pharma serosa), Pharma serous (Pharma serosa), Pharma serous (Pharma serosa), Pharma serous (Pharma serotina, Lentinus edodes (Lentinus lepidus), Lyophyllum ulmarium (Lyophyllum ulmarium), Morchella esculenta (Morchella deleciosa), Sterculia nobilis (Naematoloma sublateritium), Hippocampus tomentosa (Nolanea hirtipes), Omphalia lapescens (Omphalesens), Pleurotus ostreatus (Panus rudis), Phellinus linteus (Phellinus Linteus), Pholiota namei (Pholiota nameko), Piptoporus betulinus (Piptoporus betulinus), Pleurotus eryngii (Pleurotus eryngii), Pleurotus nebrodensis (Pleurotus brodonensis), Pleurotus ostreatus (Pleurotus ostreatus), at least one of Polyporus umbellatus (Polyzellus multiplex), Polyporus farinosus (Polyporus brumelas), Polyporus fomentarius (Poria moricola), Fomitopsis aurantiacus (Porodaceae chlamydomonas), fomes fomentarius (Pyropolus fomentarius), Schizophyllum commune (Schizophyllum commune), Stereum flareum (Stereum fasciatus), Stereum hirsutum (Stereum), Trametes orientalis (Trametes orientalis), Trametes sanguinea (Megnguinea), Tremella fuciformis (Tremella fuciformis), Tricholoma giganteum (Tricholoma acridum), Tsuzuke (Tyromyces sambucus), and Volvacia volvacea (Volvacia volvacea).
Further preferably, in the present invention, the fungus is selected from Ceriporia lacerata (in particular Ceriporia lacerata with the preservation number of CGMCC No.10485, which is disclosed in CN 106318876A) and/or Pleurotus ostreatus.
In the present invention, the degradable composite material can be prepared by a conventional method, and the preparation method of the degradable composite material is mainly described by taking the Ceriporia lacerata as an example.
In the present invention, the preparation of the degradable composite material may include: the fungi are inoculated into a culture medium containing lignocellulose scraps for culture, and then dehydrated. The cultivation can be carried out under conventional conditions for cultivating fungi, such as Ceriporia lacerata, and comprises the following conditions: the temperature is 15-35 deg.C, and the relative humidity of the culture environment is 40-95%. The time for the cultivation may be appropriately selected depending on the amount of the inoculum and the intended use of the degradable composite material, and generally, the time for the cultivation is 5 to 15 days. The amount of fungi inoculated may be 1-10g/kg culture medium. It should be noted that the inoculum size and the bacterial content of the invention are calculated by the dry weight of the mycelium (mass when dried to constant weight at 105 ℃); the mass of the culture substrate according to the present invention is also measured in terms of dry weight (mass when dried at 105 ℃ C. to constant weight).
In the present invention, in order to obtain a degradable composite material of a predetermined shape, compressive strength and suitable properties, the culturing is preferably performed in such a manner that preculture, in-mold culture and out-mold culture are sequentially performed, or in-mold culture and out-mold culture are sequentially performed. When the inoculation amount of the fungus is 1-10g/kg culture medium, the culture mode is to perform pre-culture, in-mold culture and out-mold culture in sequence; or when the inoculation amount of the fungus is more than 10 and less than or equal to 50g/kg of culture medium, the culture mode is that the in-mold culture and the out-mold culture are carried out in sequence. The aim of the pre-culture is to increase the biomass of the hyphae. The main purpose of in-mold culture is to obtain a certain three-dimensional shape of the culture, which is shaped by the growth of the mycelium. The purpose of the culture outside the mold is to ensure that the mycelium fully grows in the culture and on the surface of the culture, further improve the strength of the degradable composite material, further improve the oil absorption performance of the material and simultaneously improve the appearance of the material.
As previously mentioned, at the beginning of the in-mold culture, if the amount of fungus inoculated is small (e.g., 1-10g/kg culture substrate), the fungal content can be expanded by a pre-culture step. The conditions of the pre-culture, in-mold culture and out-mold culture may all comprise a temperature of 15-35 ℃ and a relative humidity (of the culture environment) of 40-95%, and the conditions of the pre-culture, in-mold culture and out-mold culture may be the same or different.
In order to better achieve the above object of the preculture, it is more preferable that the preculture is carried out for 1 to 5 days (1, 2, 3, 4, 5 or a range between any two of the above values), most preferably for 2 to 4 days, relative to the amount of the fungus to be inoculated of 1 to 10g/kg of the culture substrate.
In order to better achieve the above object of in-mold culture, it is more preferable that the period of in-mold culture is 1 to 9 days (1, 2, 3, 4, 5, 6, 7, 8, 9 or a range between any two of the above values), most preferably 3 to 6 days, with respect to the amount of the fungus to be inoculated is 1 to 10g/kg culture substrate.
In order to better achieve the above-mentioned purpose of the in-mold culture, it is more preferable that the time for the in-mold culture is 1 to 5 days (1, 2, 3, 4, 5 or a range between any two of the above values), most preferably 1 to 3 days, with respect to the inoculum size of the fungus per kg of culture substrate.
In the present invention, the Ceriporia lacerata CGMCC No.10485 has a strong ability to resist infectious microbes, so the culture does not need to be performed under aseptic conditions, i.e., the culture medium can be used without sterilization or bacteriostasis (including various conventional methods for inhibiting the growth or reproduction of microbes such as disinfection and sterilization), and can be inoculated with a suitable amount of Ceriporia lacerata without being aseptically isolated from the external environment for aseptic culture (the culture medium is a culture medium without sterilization or bacteriostasis, and/or the culture method is open culture (i.e., non-aseptic culture)). Wherein the sterilization or bacteriostasis treatment comprises wet heat sterilization, dry heat sterilization, heat disinfection, radiation sterilization, chemical fumigation sterilization, and various sterilization or bacteriostasis treatment modes such as additionally adding bactericides and/or bacteriostats and/or antibacterial agents and/or lysozyme and the like.
In the invention, before the culture, the strain of the fungus can be sequentially activated and expanded, wherein the activation is to culture the strain in a preserved state in a proper culture medium to recover the fermentation performance; the strain propagation is to obtain more pure and strong mycelium, namely to obtain fungi with vigorous activity and enough inoculation quantity. The activation and strain expansion may be carried out by a method conventional in the art, and for example, the activation may include inoculating mycelium of the fungus to PDA slant and culturing at 20-35 ℃ for 5-10 days. The strain propagation can comprise inoculating the activated fungi into a liquid seed culture medium, and culturing for 3-4 days at 15-35 ℃ (in order to obtain more seed liquid, two-stage or multi-stage liquid strain propagation can be adopted for liquid seed propagation). PDA slant culture medium and liquid seed culture medium are all available to those skilled in the art, and will not be described in detail herein.
In the invention, after the solid culture is finished, the obtained culture is dehydrated, and the finished product of the degradable composite material can be obtained. The dehydration mode is preferably vacuum drying, hot air drying, microwave drying, infrared drying, freeze drying, airing and natural air drying. The drying conditions may be conventional drying conditions, for example, when drying is performed by hot air drying, the drying conditions may include a temperature of 50 to 260 ℃ and a time of 0.1 to 36 hours.
According to a preferred embodiment of the present invention, the method for preparing the degradable composite material comprises the steps of inoculating fungi into a culture medium containing lignocellulose scraps, and sequentially carrying out preculture, in-mold culture and out-mold culture, and then optionally carrying out dehydration and drying. The conditions of pre-culture, in-mold culture, out-mold culture and dehydration drying are as described above and will not be described in detail.
In the process of preparing the degradable composite material, natural oil-absorbing materials such as activated carbon, charcoal, bamboo charcoal, zeolite, expanded perlite, ceramsite and the like can be mixed and/or inlaid and/or embedded in the culture medium.
In the process of preparing the degradable composite material, the invention can inlay or/and embed certain (strength-improved) materials, such as fibers, fabrics, down feather and meshes, in the material, and improve the mechanical properties of the material, such as bending strength, shearing strength, tensile strength and the like.
In the invention, the oil absorption multiplying power of the degradable composite material is not less than 1 g/g. The term "oil absorption rate" refers to the mass of oil that can be absorbed by a unit mass of the degradable composite material in a set test time, that is, the ratio of the mass of oil absorbed by a sample of the degradable composite material to the dry mass of the sample before oil absorption in a specific time, and the unit is g/g.
In the invention, the hypha in the degradable composite material is a matrix, the lignocellulose scraps are reinforcement bodies, and the hypha and the reinforcement bodies form the composite material with a certain shape and better oil absorption performance.
In a second aspect, the present invention provides a method of oil absorption, the method comprising: contacting a degradable composite material with oil, the degradable composite material comprising a three-dimensional network structure formed by fungal hyphae and at least one lignocellulosic chip immobilized by the three-dimensional network structure.
In the method of the invention, no special requirement is made on the dosage of the degradable composite material, and a person skilled in the art can select the dosage according to the oil quantity to be adsorbed and the oil absorption multiplying power of the oil absorption material.
In the method of the present invention, the oil may be oil leaked or produced under various scenes, and therefore, the method of the present invention is suitable for: collecting and recovering oil spills and oil stains in various water bodies such as oceans, estuaries, rivers and lakes; the enclosure and the adsorption of small-area oil leakage such as an oil truck, an oil tank, an oil pipeline, a workshop, the periphery of a machine and the like; adsorbing oil in factory wastewater and circulating water; a protective enclosure for preventing oil invasion in a farm or a bathing place; absorbing and deodorizing an organic solvent; the oil-absorbing filler of the oil-water separation device; harmful dripping is absorbed under leakage valves, pipelines and equipment; laid under a production line, a machine and an automobile or placed on a workbench for adsorbing and cleaning oil overflow leakage, drip leakage and leakage; adsorb the oil in municipal sewage. In the present invention, the degradable composite material is suitable for adsorbing oil in various states, for example, oil mist in liquid oil or gas or oil molecules in gas.
The method of the present invention may further comprise a step of preparing the degradable composite material, and a step of post-treating the used or oil-absorbed degradable composite material (e.g., incineration), and recycling heat generated by the incineration, thereby maximizing the value of the degradable composite material and minimizing carbon emission. Thus, according to a particular embodiment, the method comprises the steps of:
(1) preparing a degradable composite material;
(2) contacting the degradable composite material with oil;
(3) and (3) carrying out post-treatment on the degradable composite material absorbed with the oil in the step (2), wherein the post-treatment is selected from at least one of recycling and incineration.
It should be noted that the specific contents (including raw materials, preparation method, performance parameters, etc.) of the degradable composite material, the oil, etc. are as described above, and are not described herein again.
The present invention will be described in detail below by way of examples. In the following examples, Ceriporia lacerata is used with a preservation number of CGMCC No.10485, which is disclosed in CN 106318876A.
Preparation of example 1
Inoculating Ceriporia lacerata (YY) strain into the slant of a Kirschner flask, and culturing at 25 deg.C for 7 days in PDA culture medium to obtain slant strain.
The preparation method of the PDA culture medium comprises the following steps: cutting peeled potato 200g into small pieces, adding water 1L, boiling for 30min, filtering to remove potato pieces, and adding filtrate to 1.0L to obtain potato extractive solution. 1.0L potato extractive solution is added with glucose 20.0g and agar 15.0g, and sterilized at 121 deg.C for 20min under natural pH.
Inoculating slant strains into a liquid culture medium of first-class seeds, wherein the mass percentage formula of the culture medium is as follows: 2% of soluble starch, 0.6% of corn steep liquor dry powder, 0.1% of monopotassium phosphate, natural pH and sterilization at 121 ℃ for 20 min. The culture conditions are as follows: the liquid loading amount is 150mL/500mL baffle triangular flask, and the inoculation amount is about 3cm2Culturing thallus Porphyrae at 25 deg.C with 150rpm shaking table for 3 days to obtain first-stage seed solution.
Inoculating the primary seed liquid into a liquid culture medium of the secondary seeds, wherein the mass percentage formula of the culture medium is as follows: glucose 8%, corn steep liquor dry powder 0.8%, potassium dihydrogen phosphate 0.5%, pH is natural, and sterilization is carried out for 30min at 115 ℃. The flask was filled with 150mL/500mL of a baffle and inoculated at 5% by volume, and cultured at 25 ℃ for 3 days with a shaker at 150 rpm. The obtained fermentation broth was used as a seed broth for solid culture (biomass dry weight 5 g/L).
Preparation of example 2
Inoculating Pleurotus ostreatus (CGMCC 5.759 purchased from China center for general microbiological culture Collection) strain into a slant of a Kirschner flask, and culturing at 25 deg.C for 7 days in PDA culture medium to obtain slant strain.
Inoculating slant strain into PDW (potato dextrose water) culture medium (Qingdao Nishui Biotech Co., Ltd.), naturally sterilizing at 121 deg.C for 20min at pH. The culture conditions are as follows: the liquid loading amount is 150mL/500mL baffle triangular flask, and the inoculation amount is about 3cm2The lawn was cultured at 25 ℃ for 3 days with a shaker at 150rpm to obtain a seed solution for solid culture (biomass dry weight 9 g/L).
Example 1
This example illustrates the preparation of the degradable composite material used in the present invention.
The seed liquid obtained in preparation example 1 was mixed with a culture medium (culture medium components in mass% of 95% of soybean straw (particle diameter in the range of 2-15mm), 4% of bran, 1% of glucose, 1% of gypsum) which had not been subjected to sterilization treatment, without being subjected to sterilization or sterilization treatment, in an amount of 4g/kg of culture medium. The water content of the culture medium is increased to 65-70% by using tap water. The open culture was carried out at 25 ℃ under a relative humidity of 85%: pre-culturing for 3 days to make mycelium fully grow in the culture medium, placing the cultured material in a mold after the pre-culturing is finished, culturing for 5 days in the mold, taking out the mold after the mycelium grows over the culture medium, and culturing for 2 days outside the mold. Drying at 55 ℃ for 10h to obtain the degradable composite material A.
Examples 2 to 5
These examples are intended to illustrate the preparation of the degradable composite material used in the present invention.
The degradable composite materials B to E were prepared according to the method of example 1, except that the soybean stalks in the culture medium of example 1 were replaced with "soybean stalks and corn stalks at a mass ratio of 1: 1", "soybean stalks and cottonseed hulls at a mass ratio of 1: 1", "soybean stalks and corn cobs at a mass ratio of 1: 1", and "soybean stalks and peanut hulls at a mass ratio of 1: 1", respectively, all of which were able to grow and shape and had good shaping effects.
Example 6
This example illustrates the preparation of the degradable composite material used in the present invention.
Mixing the seed solution obtained in preparation example 1 with culture medium (containing poplar wood chips (particle size of 2-15mm) 96.3 wt%, dextrin 2 wt%, yeast extract powder 0.5 wt%, Gypsum Fibrosum 1 wt%, and KH) which has not been sterilized2PO40.2%) with an inoculum size of 10g/kg culture medium, and performing open solid state fermentation of the raw materials at an ambient humidity of 65% and a temperature of 35 ℃: pre-culturing for 1 day to make mycelium fully grow in the culture medium, placing the cultured material in a mold after the pre-culturing is finished, culturing for 3 days in the mold, taking out the mold after the mycelium grows over the culture medium, and culturing for 1 day outside the mold. Drying at 65 ℃ for 8h to obtain the degradable composite material F, wherein the forming effect of the degradable composite material F is basically the same as that of the degradable composite material F in example 1.
Example 7
This example illustrates the preparation of the degradable composite material used in the present invention.
The seed solution obtained in preparation example 1 was mixed with a culture medium (culture medium components in mass% of 96% corncob particles (corncob having a particle size within a range of 0.1 to 5mm and a mass ratio of corncob having a particle size of 2mm or less to corncob having a particle size of 2mm or more: 1:4), 2% fructose, 1% soybean meal hydrolysate, and 1% gypsum) which had not been subjected to sterilization treatment, in an inoculation amount of 2g/kg of culture medium. The water content of the culture medium is increased to 65-70% by using tap water. Open culture was performed at 15 ℃ (humidity of culture environment 55%): pre-culturing for 4 days to make mycelium fully grow in the culture medium, placing the cultured material in a mold after the pre-culturing is finished, culturing for 8 days in the mold, taking out the mold after the mycelium grows over the culture medium, and culturing for 3 days outside the mold. Drying at 80 ℃ for 20h to obtain the degradable composite material G, wherein the forming effect of the degradable composite material G is basically the same as that of the embodiment 1.
Example 8
This example illustrates the preparation of the degradable composite material used in the present invention.
A degradable composite material H was prepared according to the method of example 7, except that 40% of "corncobs" in the culture medium was replaced with "waste mushroom bran" of equal mass for cultivation of Lentinus edodes.
Comparative example 1
The seed solution obtained in preparation example 1 was mixed with a sterilized culture medium (culture medium components in mass percent: 94% of bamboo fiber (leftover of bamboo fiber produced by Yibin Changshun bamboo industries, Ltd., length 30-80mm), 5% of corn flour, and 1% of gypsum), the inoculation amount was 4g/kg of culture medium, and the water content of the culture medium was controlled to 65-70%. The culture was carried out at 25 ℃ and a relative humidity of 85%. The growth of the inoculated YY hypha is not seen after 8 days of culture, and the bamboo fiber is not solidified and formed. Drying at 85 ℃ for 10h gave comparative material I.
Example 9
The seed solution obtained in preparation example 2 was inoculated into a sterilized culture medium (culture medium components in mass% of 88% cottonseed hull, 8% bran, 2% distilled dried distillers' grains, 1% sucrose, 1% gypsum) in an amount of 8g/kg, and the water content of the culture medium was controlled to 65-70%. Placing into a sterile mold, and culturing at 25 deg.C. The culture environment is required to be sterile to ensure that hyphae grow fully in the culture medium. And (3) demolding after the hyphae grow over the culture medium, and drying at 65 ℃ for 10 hours to obtain the degradable composite material J.
Example 10
The seed liquid obtained in preparation example 1 was mixed with a culture substrate (culture substrate components: 79% by mass, bran 20% by mass, gypsum 1%) which had not been sterilized, in an amount of 2g/kg of culture substrate. The water content of the culture medium is increased to 65-70% by using tap water. The culture was carried out at 25 ℃ and a relative humidity of 85%. Placing into a mold after 2 days of pre-culture, continuously culturing for 6 days, allowing mycelia to overgrow with culture medium, taking out from the mold, and culturing outside the mold for 2 days. Drying at 105 ℃ for 10h to obtain the degradable composite material K, wherein the forming effect of the degradable composite material K is basically the same as that of the degradable composite material K in example 1.
Example 11
The seed solution obtained in preparation example 1 was mixed with a culture medium (culture medium components in mass percent: 30% of acid-treated bamboo fiber (leftovers of bamboo fiber produced by Yibin Changshun bamboo industries Co., Ltd., length of 30-80mm), 69% of soybean stalk, and 1% of gypsum) without sterilization treatment, and the inoculation amount was 4g/kg of culture medium. The water content of the culture medium is increased to 65-70% by using tap water. The culture was carried out at 25 ℃ and a relative humidity of 85%. Pre-culturing for 3 days, allowing the inoculated mycelia to grow over the culture medium, placing into a mold, culturing for 3 days, taking out from the mold, and culturing for 1 day outside the mold. Drying at 80 ℃ for 16h to obtain the degradable composite material L, wherein the forming effect of the degradable composite material L is basically the same as that of the embodiment 1.
Example 12
After preculture was completed as in example 1, the preculture was placed in a hemispherical well with a diameter of 4cm, and the center of the hemispherical culture was pressed out into a hemispherical recess with a diameter of about 1.5cm by a spherical indenter. Culturing at 25 deg.C in a constant temperature and humidity incubator with relative humidity of 85% for 2d, and solidifying the culture to form a semi-sphere with a concave middle part. And taking out the formed hemispheres with the middle depressions from the mold, buckling the hemispheres on another hemispheres with the same shape, enabling the section surfaces of the two hemispheres with the middle depressions to be attached and cultured for 5 days, and tightly connecting the two hemispheres with the middle depressions through the growth of hyphae to form a complete hollow sphere (degradable composite material M) with a spherical cavity inside.
Test example 1
This test example is intended to illustrate the physical properties of the degradable composite material prepared by the present invention.
The apparent density of the degradable composite material prepared in the above examples was calculated by measuring the mass and volume.
The degradable composite materials obtained in the examples were subjected to a compression performance test (test method GB/T8813-: the pressure which needs to be applied when the degradable composite material is compressed by 50% is taken as an expression, and the greater the pressure which needs to be applied, the higher the compression strength of the degradable composite material is.
The results of the measurement of the apparent density and the compressive strength are shown in Table 1.
TABLE 1 apparent Density and compressive Strength of degradable composites
| Degradable composite material | Apparent density (kg/m)3) | Compressive Strength (MPa) |
| A | 160±2 | 1.2 |
| B | 120±9 | 0.82 |
| C | 228.4±15 | 1.5 |
| D | 196.5±8 | 1.8 |
| E | 197.2±21 | 2.08 |
| F | 223.6±9 | 2.3 |
| G | 334.15±12 | 3.2 |
| H | 278±19 | 2.9 |
| J | 185±9 | 1.5 |
| K | 155±8 | 1.3 |
| L | 178±11 | 1.4 |
| M (hollow spherical material) | 112±12 | Not tested |
Test example 2
The water absorption properties of the shaped degradable composites obtained in the examples were determined as follows:
(1) soaking the degradable composite material in water at the temperature of 20 +/-1 ℃ to enable the upper surface of the sample to be about 25mm away from the water surface, draining for 10 +/-2 min in a suspended manner after soaking for 2h, continuously and horizontally soaking the sample below the water surface to enable the upper surface of the sample to be about 25mm away from the water surface, and soaking for 22 h. After 2h and 22h soaking test, the material is not obviously deformed and still floats on the water surface through visual observation.
(2) The degradable composite material is soaked in water with the temperature of 20 +/-1 ℃ to enable the upper surface of the sample to be 25mm away from the water surface, after the sample is soaked for 24 hours, the material is not obviously deformed when observed by naked eyes, and the sample cannot naturally sink into the water.
The results of this test example show that: the degradable composite material used in the invention has low density and good floatability, and still floats on the water surface after fully absorbing water.
Test example 3
Reference GB/T19277.1-2011 "determination of the ultimate aerobic biological decomposition Capacity of a Material under controlled composting conditions part 1 of the method for determining the carbon dioxide released: the final 180-day biodegradation rate of the degradable composite material A tested by the general method is 75.1 percent, which exceeds the technical requirements of GB/T20197 and 2006 'definition, classification, marking and degradation performance requirements' of degradable plastics on the mixture.
Test example 4
The degradable composite materials are all combustible materials, and the smoke density of the degradable composite material A is determined to be 51.2 according to GB/T8627 and 2007 Smoke density test method for combustion or decomposition of building materials.
Testing the smoke toxicity of the degradable composite material A according to GB/T20285 Material Smoke toxicity Risk Classification, and meeting the safety level of the standard (AQ)2) When the smoke concentration is 50.0mg/L, the anesthesia and the irritation are qualified.
Test example 1
The test example shows the method for measuring the oil absorption multiplying power of the degradable composite material and the result.
(I) static oil absorption multiplying power of the whole oil system:
placing a proper amount of degradable composite material in tested oil, standing and contacting the degradable composite material and the oil at 23 +/-2 ℃ for 10min, pouring the degradable composite material and the oil on a screen together, draining the oil for 3min, and weighing the mass of the degradable composite material after oil absorption. The calculation formula of the oil absorption multiplying power is as follows:
wherein "dry mass of the material before the test" means the mass of a sample of the material dried to constant weight at 105 ℃ before the oil absorption test.
The results of the static oil absorption capacity measurements for the full oil system are shown in table 2 (6 replicates for each set of tests).
TABLE 2 static oil absorption Rate of comparative materials and degradable composites in full oil System
(II) dynamic oil absorption multiplying power of the whole oil system:
placing a proper amount of degradable composite material A and tested oil into a 500mL conical flask, and oscillating at the temperature of 23 +/-2 ℃ and 100r/min for 1min, 2min, 3min, 5min, 10min, 20min, 40min, 1h, 2h, 4h and 24h respectively; and pouring the degradable composite material A and oil on a screen together after the oscillation is finished, draining the oil for 3min, and weighing the mass of the degradable composite material A after the oil absorption. The oil absorption multiplying power is calculated according to the static oil absorption multiplying power of the whole oil system.
The results of the dynamic oil absorption multiplying power measurement of the whole oil system are shown in Table 3.
TABLE 3 dynamic oil absorption multiplying power of degradable composite material A in full oil system at different adsorption time
| Time of day | Diesel oil (0#) | Engine oil (Shell brand, HX6) | Soybean oil (golden dragon fish) |
| 1min | 0.72 | 1.23 | 0.96 |
| 2min | 1.32 | 2.12 | 1.29 |
| 3min | 1.68 | 3.08 | 2.89 |
| 5min | 2.45 | 4.24 | 4.65 |
| 10min | 3.86 | 4.52 | 4.89 |
| 20min | 4.28 | 4.67 | 4.99 |
| 40min | 4.62 | 5.12 | 4.97 |
| 1h | 4.71 | 5.23 | 5.01 |
| 2h | 4.75 | 5.31 | 5.03 |
| 4h | 4.76 | 5.32 | 5.01 |
| 24h | 4.78 | 5.36 | 5.05 |
(III) dynamic oil absorption multiplying power of the oil-water mixing system:
placing 25g of oil and 125mL of deionized water in a 500mL conical flask, and shaking and mixing for 10min at 100 r/min; placing a proper amount of degradable composite material into the oil-water mixture, oscillating at 23 +/-2 ℃ at 100r/min for 10min, pouring the degradable composite material and the oil-water mixture onto a screen, dripping for 3min, then placing the screen into a drying oven at 105 ℃ for 4h, removing water, and weighing the mass of the dehydrated degradable composite material. The oil absorption multiplying power calculation formula is as follows:
wherein "dry mass of the material before the test" means the mass of a sample of the material before the oil absorption test when dried to constant weight at 105 ℃.
The results of the dynamic oil absorption multiplying power of the oil-water mixed system are shown in table 4.
TABLE 4 dynamic oil absorption multiplying power of contrast material and degradable composite material in oil-water mixed system
(IV) dynamic oil absorption multiplying power of the oil and simulated seawater mixed system:
the method is the same as the dynamic oil absorption multiplying power of the oil-water mixed system in the step (III), and only deionized water is replaced by simulated seawater. The simulated seawater is prepared according to ASTM D1141 Standard Practice for the Preparation of the topic Ocean Water. The results of the oil absorption multiplying power are shown in Table 5.
TABLE 5 dynamic oil absorption Rate of comparative materials and degradable composites in oil and simulated seawater mixing systems
Test example 2
The test example shows the method for determining the oil holdup of the degradable composite material of the invention and the results.
And (3) draining the oil absorbed material under the action of natural gravity, weighing the mass of the oil-containing material at different time points, taking the drained oil time of 3min as a starting point (0min) of oil retention rate measurement, taking the drained oil time of 63min as 60min (1h) of oil retention rate measurement, and so on.
The results of the oil holdup measurements are shown in Table 6.
TABLE 6 oil holdup of comparative materials and degradable composites over time
Test example 3
The method of (I) in test example 1 is used for measuring the oil absorption multiplying power of the degradable composite material A to 0# diesel oil at different temperatures, and the vibration is carried out for 4h under the measuring condition of 100 r/min. The results are shown in Table 7.
TABLE 7 oil absorption multiplying power of degradable composite material A to 0# diesel oil at different temperatures
| Temperature (. degree.C.) | Oil absorption multiplying power (g/g) |
| 5 | 4.18 |
| 10 | 4.35 |
| 20 | 4.92 |
| 25 | 4.76 |
| 30 | 5.34 |
| 40 | 5.26 |
Test example 4
The degradable composite material C was tested for static oil absorption capacity against tallow (commercially available) according to the method of (i) in test example 1. The tested oil absorption and oil draining temperatures are both 60 ℃ (at which the beef tallow is in a liquid state), and the oil absorption multiplying power of the degradable composite material C is 3.92 g/g.
Test example 5
(1) The degradable composite was tested for static oil absorption rate in different oils according to the method of (I) in test example 1, and the results are shown in Table 8.
(2) The dynamic oil absorption rate of the degradable composite material in several oil-water mixed systems was tested according to the method (III) in test example 1, except that the oil dripped within 3min after oil absorption was returned to the oil-water mixed system. And calculating the oil absorption multiplying power of the material by measuring the reduction amount of oil in the oil-water mixed system. The calculation formula of the oil absorption multiplying power is as follows:
the results are shown in Table 8.
TABLE 8 oil absorption Rate of degradable composites to oil
All the organic reagents used in the test examples were commercially available analytical reagents.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (7)
1. Use of a degradable composite material for oil absorption, wherein the degradable composite material comprises a three-dimensional network structure formed by fungal hyphae and at least one lignocellulosic piece immobilized by the three-dimensional network structure.
2. A method of absorbing oil, the method comprising: contacting a degradable composite material with oil, the degradable composite material comprising a three-dimensional network structure formed by fungal hyphae and at least one lignocellulosic chip immobilized by the three-dimensional network structure.
3. Use according to claim 1 or method according to claim 2, wherein the degradable composite material is in the form of a regular or irregular three-dimensional solid.
4. The use of claim 1 or the method of claim 2, wherein the lignocellulosic detritus is derived from at least one of plants, plant waste and waste culture substrate remaining from the cultivation of edible fungi;
preferably, the plant is selected from at least one of seeds, stalks, roots, leaves and fruits;
preferably, the plant waste is selected from at least one of seed husks, straw, wood waste, vine waste, paper scraps, cotton scraps, corn cobs and bagasse;
more preferably, the lignocellulosic pieces are derived from at least one of beanstalk, corn stover, rice straw, wheat straw, cotton straw, bran, cottonseed hulls, corncobs, wood chips, bamboo shavings, and waste mushroom bran.
5. The use according to claim 1 or the method according to claim 2, wherein the fungus is a fungus with a mycelial growth stage, preferably a large fungus of the families ascomycetes (ascomycetes) and basidiomycetes (Basidiomycota), selected from the families of the mushrooms (Agaricaceae), the families of the trichothecaceae (auricle iariaceae), the families of the poromycetes (bongarezweiceae), the families of the fomitopsidae (fomitopsidae), the families of the ganoderma (Ganodermataceae), the families of the fuscophyllaceae (gloeophyceae), the families of the malassezia (Helvllaceae), the families of the morchellacaceae (Morchellaceae), the families of the actinomycetes (omphalicaceae), the families of the ascomycetes (trichoderma), the families (trichoderma viridae), the families of the families (trichoderma), the families (trichoderma), the families (trichoderma), the families (trichoderma), the families of the families), the families (trichoderma), the families (trichoderma (;
still preferably, the fungus is selected from the group consisting of Agaricus (Agaricus), Agrocybe (Agrocybe) Auricularia (Auricularia), Hymenoptera (Bjerkandra), Polyporus (Bondarzewia), Ceriporia (Ceriporia), Clitomyces (Clitocybe), Coriolus (Coriolus), Pseudomona (Daedalleopsis), Polyporus (Favolus), Flammulina (Flammulina), Phellinus (Fomes), Phellinus (Fomitopsis), Ganoderma (Ganoderma), Pleurotus (Gloenophyllum), Malaysia (Helvella), Uvularia (Hypophoma), Phellinus (Inonotus), Lactarius (Lactarius), Leinula (Leinula), Lyophyllum (Lyophyllum), Pleurotus (Phomophyllum), Pleurotus (Pholiota (P. sp), Pleurotus) and Pleurotus (P. sp.), Pleurotus (Pleurotus) A), At least one fungus of the genera Poria (Poria), Porphyridium (Porodadalea), Fomitopsis (Pyropolorum), Schizophyllum (Schizophyllum), coriolus (Stereum), Trametes (Trametes), Tremella (Tremella), Tricholoma (Tricholoma), Tyromyces (Tyromyces) and Hypsizigus (Volvariella);
more preferably, the fungus is selected from the group consisting of Agaricus bisporus (Agaricus bisporus), Agaricus bicolor (Agaricus planecomyces), Agrocybe aegerita (Agrocybe aegerita) Auricularia (Auricularia auricula), Erysipelothria fumosorosea (Bjerkandra fumosa), Torulopsis burghia (Bondazia berkeley), Ceriporia lacerata (Ceriporia lacerata), Clitophylla maxima (Clitophylla maxima), Coriolus versicolor (Coriolus biformis), Coriolus hirsutus (Coriolus hirsutus), Coriolus versicolor (Coriolus versicolor), Hymenochaetes crassa (Daaleopsis Frondosa), Pharmacopeia tricolor (Daalersis tricolor), Hymenochaetes versicolor (Pharmacophyllum), Ganoderma lucidum (Pharmacophyllum), Hypocladium giganteum (Pharmacophyllum trichoderma), Hypocladium giganteum (Pharmata), Hypocladium giganteum trichoderma, Hypocrea (Pharmata), Pharmacopeia giganteum trichoderma, Hypocladium tricornutum (Pharma serosa), Hygrophyte (Pharmata), Pharmacopeia giganteum trichoderma), Hygrophyceae (Pharma serous (Pharma serotus), Pharma serosa), Pharma serous (Pharma serosa), Pharma serous (Pharma serosa), Pharma serous (Pharma serotina, Lentinus edodes (Lentinus lepidus), Lyophyllum ulmarium (Lyophyllum ulmarium), Morchella esculenta (Morchella deleciosa), Sterculia nobilis (Naematoloma sublateritium), Hippocampus tomentosa (Nolanea hirtipes), Omphalia lapescens (Omphalesens), Pleurotus ostreatus (Panus rudis), Phellinus linteus (Phellinus Linteus), Pholiota namei (Pholiota nameko), Piptoporus betulinus (Piptoporus betulinus), Pleurotus eryngii (Pleurotus eryngii), Pleurotus nebrodensis (Pleurotus brodonensis), Pleurotus ostreatus (Pleurotus ostreatus), at least one of Polyporus umbellatus (Polyzellus multiplex), Polyporus farinosus (Polyporus brumelas), Polyporus fomentarius (Poria moricola), Fomitopsis aurantiacus (Porodaceae chlamydomonas), fomes fomentarius (Pyropolus fomentarius), Schizophyllum commune (Schizophyllum commune), Stereum flareum (Stereum fasciatus), Stereum hirsutum (Stereum), Trametes orientalis (Trametes orientalis), Trametes sanguinea (Megnguinea), Tremella fuciformis (Tremella fuciformis), Tricholoma giganteum (Tricholoma acridum), Tsuzuke (Tyromyces sambucus), and Volvaria volvacea (Volvacia);
further preferably, the fungus is selected from Ceriporia lacerata and/or Pleurotus ostreatus.
6. The use according to claim 1 or the method according to claim 2, the oil being selected from at least one of vegetable oil, mineral oil, animal oil and synthetic water-insoluble liquid.
7. The use according to claim 1 or the method according to claim 2, wherein the degradable composite material comprises a three-dimensional network formed by torn Ceriporia cerealis hyphae with the preservation number of CGMCC No.10485 and at least one lignocellulose fragment fixed by the three-dimensional network.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061624.6A CN112062217A (en) | 2020-09-30 | 2020-09-30 | Application of degradable composite material in oil absorption |
| PCT/CN2020/137649 WO2022068093A1 (en) | 2020-09-30 | 2020-12-18 | Use of degradable composite material in oil absorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061624.6A CN112062217A (en) | 2020-09-30 | 2020-09-30 | Application of degradable composite material in oil absorption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112062217A true CN112062217A (en) | 2020-12-11 |
Family
ID=73683264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011061624.6A Pending CN112062217A (en) | 2020-09-30 | 2020-09-30 | Application of degradable composite material in oil absorption |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112062217A (en) |
| WO (1) | WO2022068093A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679978A (en) * | 2020-12-24 | 2021-04-20 | 李红霞 | Preparation method of antibacterial biomass packaging material |
| WO2022068093A1 (en) * | 2020-09-30 | 2022-04-07 | 中国科学院天津工业生物技术研究所 | Use of degradable composite material in oil absorption |
| CN114984920A (en) * | 2022-06-15 | 2022-09-02 | 安徽工程大学 | Preparation method of hydrophobic loofah sponge for oil-water separation |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300985B (en) * | 2022-06-17 | 2023-11-24 | 华电电力科学研究院有限公司 | Efficient acid removal regeneration treatment method for oil for power equipment |
| CN116396906A (en) * | 2023-04-14 | 2023-07-07 | 福建省农业科学院农业生物资源研究所 | Solid state fermentation product of non-pathogenic bacterial wilt and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2240334C1 (en) * | 2003-06-25 | 2004-11-20 | Общество с ограниченной ответственностью "ТрансПлюс" | Wood-based composition |
| CN104277986A (en) * | 2014-09-30 | 2015-01-14 | 浙江大学 | Ceriporia lacerata strain and application thereof |
| CN106111695A (en) * | 2016-07-26 | 2016-11-16 | 白银博奥普生物科技有限公司 | A kind of method utilizing macro fungi mycelium degraded soil organic pollutant |
| CN106317922A (en) * | 2015-07-07 | 2017-01-11 | 中国科学院天津工业生物技术研究所 | Degradable material and preparation method thereof |
| CN106633990A (en) * | 2016-12-30 | 2017-05-10 | 深圳市泽青源科技开发服务有限公司 | Fungus-based biomass packaging material taking maize straw as main materials and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6011110A (en) * | 1996-09-13 | 2000-01-04 | Nisshinbo Industries, Inc. | Carrier for bioreactor and method of producing the same |
| US20120276021A1 (en) * | 2003-03-12 | 2012-11-01 | Danisco Us Inc. | Use of repeat sequence protein polymers in personal care compositions |
| CN112062217A (en) * | 2020-09-30 | 2020-12-11 | 中国科学院天津工业生物技术研究所 | Application of degradable composite material in oil absorption |
-
2020
- 2020-09-30 CN CN202011061624.6A patent/CN112062217A/en active Pending
- 2020-12-18 WO PCT/CN2020/137649 patent/WO2022068093A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2240334C1 (en) * | 2003-06-25 | 2004-11-20 | Общество с ограниченной ответственностью "ТрансПлюс" | Wood-based composition |
| CN104277986A (en) * | 2014-09-30 | 2015-01-14 | 浙江大学 | Ceriporia lacerata strain and application thereof |
| CN106317922A (en) * | 2015-07-07 | 2017-01-11 | 中国科学院天津工业生物技术研究所 | Degradable material and preparation method thereof |
| CN106111695A (en) * | 2016-07-26 | 2016-11-16 | 白银博奥普生物科技有限公司 | A kind of method utilizing macro fungi mycelium degraded soil organic pollutant |
| CN106633990A (en) * | 2016-12-30 | 2017-05-10 | 深圳市泽青源科技开发服务有限公司 | Fungus-based biomass packaging material taking maize straw as main materials and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 彭丹: "生物改性木质纤维素材料制备溢油吸附剂的特性和机理研究", 《中国博士学位论文全文数据库（电子期刊）工程科技I辑》 * |
| 杨东方等: "《海湾生态学 上册》", 31 January 2010, 北京：海洋出版社 * |
| 石若夫等: "《应用微生物技术》", 30 April 2020, 北京航空航天大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022068093A1 (en) * | 2020-09-30 | 2022-04-07 | 中国科学院天津工业生物技术研究所 | Use of degradable composite material in oil absorption |
| CN112679978A (en) * | 2020-12-24 | 2021-04-20 | 李红霞 | Preparation method of antibacterial biomass packaging material |
| CN112679978B (en) * | 2020-12-24 | 2022-04-08 | 李红霞 | Preparation method of antibacterial biomass packaging material |
| CN114984920A (en) * | 2022-06-15 | 2022-09-02 | 安徽工程大学 | Preparation method of hydrophobic loofah sponge for oil-water separation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022068093A1 (en) | 2022-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112062217A (en) | Application of degradable composite material in oil absorption | |
| Bellettini et al. | Factors affecting mushroom Pleurotus spp. | |
| US20220380271A1 (en) | Growth Media for Improved Growth and Yield of Fungus Using Treated Lignocellulosic Biomass | |
| US20100120128A1 (en) | Eco-engineering for systematic carbon mitigation | |
| Rezania et al. | The diverse applications of water hyacinth with main focus on sustainable energy and production for new era: An overview | |
| Economou et al. | Valorization of spent oyster mushroom substrate and laccase recovery through successive solid state cultivation of Pleurotus, Ganoderma, and Lentinula strains | |
| Das | Heavy metals biosorption by mushrooms | |
| CN112225326A (en) | Application of mycelium material in oil absorption | |
| Desrochers et al. | Sargassum uses guide: a resource for Caribbean researchers, entrepreneurs and policy makers | |
| Jafari et al. | The effect of Pleurotus spp. fungi on chemical composition and in vitro digestibility of rice straw | |
| Gholizadeh et al. | Remediation of contaminated rice farmlands soil and Oryza sativa rice product by apple pomace as adsorbent | |
| Fernández et al. | Fundamentals in applications of algae biomass: A review | |
| Alam et al. | Harvesting and pretreatment techniques of aquatic macrophytes and macroalgae for production of biofuels | |
| Shirkhan et al. | Green technologies and environmental management: A new understanding and approach to the use of agricultural waste | |
| Ziarati et al. | Analysis of removal methods of toxic heavy metals using bio-absorbs | |
| Gupta et al. | Agricultural Waste as a Resource: The Lesser Travelled Road to Sustainability | |
| Kousar et al. | Recent advances on environmentally sustainable valorization of spent mushroom substrate: A review | |
| CN101817589A (en) | Microbial ecological bed and method for treating inland river by using microbial ecological bed | |
| Biswas et al. | Recycling of ligno-cellulosic waste materials through oyster mushroom cultivation for sustainable food production | |
| El Hage et al. | Harvest and postharvest technologies | |
| Kuforiji et al. | Biodegradation of agro-industrial wastes by a edible mushroom Pleurotus tuber-regium (Fr.) | |
| CN112175406B (en) | Application of degradable composite material in humidity conditioning | |
| Lakshmi | In vivo Utilization of Seafood Processing Waste for Cultivation of the Medicinal Mushroom (Ganoderma lucidum) using Agro-Industrial Waste | |
| Khan et al. | Agricultural solid waste management: an approach to protect the environment and increase agricultural productivity | |
| Malik et al. | Microbial valorization of coir pith for development of compost and bioethanol production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201211 |
|
| RJ01 | Rejection of invention patent application after publication |